From 4e97d13d20701439b7d9f719c590cbae1d948e59 Mon Sep 17 00:00:00 2001
From: charlie <3140647@qq.com>
Date: Tue, 7 Jun 2022 10:57:42 +0800
Subject: [PATCH] spin locker

---
 locker/spin_locker.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/locker/spin_locker.go b/locker/spin_locker.go
index 8db0e44..2309dee 100644
--- a/locker/spin_locker.go
+++ b/locker/spin_locker.go
@@ -11,6 +11,10 @@ func NewSpinLocker() *spinLock {
 	return new(spinLock)
 }
 
+func (sl *spinLock) TryLock() bool {
+	return atomic.CompareAndSwapUint32((*uint32)(sl), 0, 1)
+}
+
 func (sl *spinLock) Lock() {
 	for !atomic.CompareAndSwapUint32((*uint32)(sl), 0, 1) {
 		runtime.Gosched()